If you were using the SF download pages, it's all explained in the README sections at the bottom. I currently can't build Mac 0.4 (and I need to wait for my anger at Xcode and the Mac keyboard layout to subside before I try again) and the thing requiring libfuse is a portable app, not an installer. It's both a disk image and an ELF executable, and when you run it, it mounts itself (using libfuse) and executes the contained game
Ah. Ok, I see it now. AI-Team confused Portable Apps (Linux) with App Bundles (Mac)
